diff --git a/requirements.txt b/requirements.txt
index 72ca0c2..ac23bb3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,4 +3,4 @@ numpy
 pysoundfile
 pynini
 dataclassy
-praatio
+praatio>=6.0.0
diff --git a/rtd_environment.yml b/rtd_environment.yml
index 1107387..416e6a4 100644
--- a/rtd_environment.yml
+++ b/rtd_environment.yml
@@ -4,7 +4,7 @@ dependencies:
   - python>=3.9
   - numpy
   - librosa
-  - praatio=6.0.0
+  - praatio>=6.0.0
   - dataclassy
   - pynini
   - sphinx